Horse blanket



FIG. 1 is a top plan view of a horse blanket showing my design;

FIG. 2 is a bottom plan view thereof; and,

FIG. 3 is a perspective view thereof in use.

The dashed lines in FIG. 1 and 2 represent lines of stitching, and the portions of FIG. 3 shown in broken lines form no part of the claimed design. 

The ornamental design for a horse blanket, as shown and described. 